Pail pack and a welding wire package using it

ABSTRACT

A large capacity welding wire container for storing welding wire, in which an outer shell, an inner shell, a base plate and upper and lower fixtures are mostly made of paper as well as application of steel is minimized so that the container is readily discarded after exhaustion and coupled/disassembled, and a welding wire package using the same. The welding wire container comprises: an upper protrusion enlarged in diameter beyond the outer shell for structurally reinforcing an upper outer portion of the outer shell; a lid sized for covering the outer shell; and an upper fixture for fixing and wrapping the lid at an upper end of the outer shell to obtain structural reinforcement, wherein the upper fixture includes a flange extending inward along an outer edge of the lid, a supporting face folded from the flange and extending along an outer periphery of the upper protrusion and a folded groove arranged under the supporting face and having a diameter smaller than that of the upper protrusion.

TECHNICAL FIELD

The present invention relates to a large capacity welding wire containerfor storing welding wire. More particularly, the present inventionrelates to a welding wire container in which an outer shell, an innershell, a base plate and upper and lower fixtures are mostly made ofpaper as well as application of steel is minimized so that the containeris readily discarded after exhaustion and coupled/disassembled, and awelding wire package using the same.

BACKGROUND ART

As shown in FIG. 1, a conventional welding wire container 100 includes acylindrical outer shell 110 made of paper sheets stacked into severallayers, a circular plywood base plate 120 fitted into a lower opening ofthe outer shell 110 and upper and lower seam-welded steel fixtures 130 aand 130 b fitted around the upper and lower ends of the outer shell 110.

An upper end of the outer shell 110 is rolled down into the outer shell110 by using the upper seam-welded steel fixture 130 a, and a lower endof the outer shell 110 is roll up into the outer shell 110 by using thelower seam-welded steel fixture 130 b to form a fitting projection 132so that the circular base plate 120 may not slip downward. Also theconventional welding wire container 100 includes an inner shell 140within the outer shell 110. A steel disk 142 is pushed into a loweropening of the inner shell 140, and bonded thereto via a high-strengthadhesive. Then the steel disk 142 has been bonded to the circular baseplate 120 via the high-strength adhesive or coupled to the circular base120 via a bolt 144 a and a net 144 b so as to fix the inner shell 140.

A lid 150 is mounted on the upper fixture 130 a in the upper end of theouter shell 110 while wrapping the upper end of the fixture 130 atherein. The container includes a ring member 160 for wrapping an outerperiphery of the lid 150 to securely fix the lid 150 to the upperfixture 130 a. The ring member 160 has a clamp 162 for fixing both endsthereof.

However, the conventional container 100 is disadvantageously complicatedin manufacture. Further, in discarding any exhausted container, thecontainer is not disassembled. In particular, it is further troublesomesince the welding wire container 100 is in the form of a large capacityvessel. That is to say, when the exhausted container 100 is stored for acertain time period before discarded, the container 100 occupies a largearea of storage site since it has a large capacity. Further,transportation of the conventional container 100 always confronts aproblem of excessive transportation cost.

Since the conventional container 100 is rarely disassembled in discard,container 100 is mostly incinerated and only remaining steel portionsare retreated. Treatment efficiency is very poor since even alarge-sized incinerator can treat only 1 or 2 containers. Sometimes, aweight is hung on a large crane to compress the container 100 and reducethe volume thereof before incinerating the container 100. However, theadhesive sticking to the inner shell 140 of the container and so onreleases poisonous gas and smoke during incineration thereby inducingair pollution as a problem.

Of course, though the container 100 can be collected and reused,collection and reuse are not practical since it is expensive to collectempty containers and the used containers may have been damaged in use orcontain moisture inadequate for reuse. Although some containers areclean in appearance, they are rarely reused owing to doubtful strengthand so on.

DISCLOSURE OF THE INVENTION

Accordingly the present invention has been made to solve the foregoingproblems of the prior art. It is therefore an object of the presentinvention to provide a welding wire container in which an outer shell,an inner shell, a base plate and upper and lower fixtures are mostlymade of paper as well as application of steel is minimized so that thecontainer is readily discarded after exhaustion, and a welding wirepackage using the same.

It is another object of the present invention to provide a welding wirecontainer in which an outer shell, an inner shell, a base plate andupper and lower fixtures constituting the container are readilycoupled/disassembled, and a welding wire package using the same.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a partially broken perspective view of a welding wirecontainer of the prior art;

FIGS. 2 a and 2 b illustrate a structure of a welding wire containeraccording to the first embodiment of the invention, in which

FIG. 2 a is a partially broken perspective view thereof, and

FIG. 2 b is a partially broken sectional view thereof;

FIGS. 3 a and 3 b illustrate an alternative structure of a welding wirecontainer according to the first embodiment of the invention, in which

FIG. 2 a is a partially broken perspective view thereof, and

FIG. 2 b is a partially broken sectional view thereof;

FIG. 4 is a partially broken perspective view of the welding wirecontainer having an inner shell installed therein according to the firstembodiment of the invention;

FIGS. 5 a to 5 c are perspective views of examples of upper and outerprotrusions equipped in the welding wire container according to thefirst embodiment of the invention;

FIGS. 6 a and 6 b illustrate a welding wire container according to asecond embodiment of the invention, in which

FIG. 6 a is a partially broken perspective view thereof, and

FIG. 6 b is a partially broken sectional view thereof;

FIG. 7 is a partially broken perspective view illustrating the weldingwire container having an inner shell installed therein according to thesecond embodiment of the invention;

FIG. 8 is an exploded perspective view of the welding wire containerhaving the inner shell installed therein according to the secondembodiment of the invention;

FIGS. 9 a to 9 c are perspective views of examples of the welding wirecontainer according to the second embodiment of the invention;

FIGS. 10 a to 10 c are perspective views of examples of the welding wirecontainer having outside diameter-adjusting means according to thesecond embodiment of the invention;

FIG. 11 is a partially broken perspective view of a welding wirecontainer according to a third embodiment of the invention;

FIG. 12 is a sectional view of the welding wire container according tothe third embodiment of the invention;

FIG. 13 is a partially broken perspective view of the welding wirecontainer having a reinforcing member with a clamp according to thethird embodiment of the invention;

FIG. 14 is a sectional view of the welding wire container in useaccording to the third embodiment of the invention;

FIGS. 15 a and 15 b illustrate a transport jig for transporting acontainer of the invention, in which

FIG. 15 a is an exterior perspective view thereof, and

FIG. 15 b is a sectional view thereof in use;

FIGS. 16 a and 16 b illustrate an alternative transport jig fortransporting the container of the invention, in which

FIG. 16 a is an exterior perspective view thereof, and

FIG. 16 b is a sectional view thereof in use;

FIGS. 17 a and 17 b illustrate welding wire containers according to afourth embodiment of the invention;

FIG. 17 c is a sectional view magnifying a coupling status of an upperfixture, a lid and a ring member in the welding wire container accordingto the fourth embodiment of the invention;

FIG. 17 d is a magnification of another alternative welding wirecontainer according to the fourth embodiment of the invention;

FIG. 17 e is a sectional view magnifying a coupling status of an upperfixture, a lid and a ring member in the welding wire container shown inFIG. 17 d;

FIG. 18 a illustrates alternative upper and lower fixtures equipped inthe welding wire container according to the fourth embodiment of theinvention;

FIG. 18 b is a sectional view magnifying a coupling status of an upperfixture, a lid and a ring member in the welding wire container shown inFIG. 18 a;

FIGS. 19 a and 19 b illustrate another alternative upper and lowerfixtures equipped in the welding wire container according to the fourthembodiment of the invention, in which

FIG. 19 a shows the upper fixture, and

FIG. 19 b shows the lower fixture;

FIGS. 20 a to 20 d illustrate further another upper and lower fixturesequipped in the welding wire container according to the fourthembodiment of the invention, in which

FIG. 20 a is a perspective view of the upper fixture,

FIG. 20 b is a sectional view of a clamping means,

FIG. 20 c is a plan sectional view of the clamping means, and

FIG. 20 d is a perspective view of the lower fixture;

FIG. 21 is an exploded perspective view of a base plate equipped in thewelding wire container according to the fourth embodiment of theinvention;

FIG. 22 is a longitudinal sectional view of the welding wire containeraccording to the fourth embodiment of the invention;

FIG. 23 is an exterior perspective view of a ring equipped in thewelding wire container according to the fourth embodiment of theinvention; and

FIGS. 24 a to 24 d illustrate several alternative cross sections of thewelding wire container of the invention, in which

FIG. 24 a is a plan view having a quadrangular cross section,

FIG. 24 b is a plan view having a pentagonal cross section,

FIG. 24 c is a plan view having a hexagonal cross section, and

FIG. 24 d is a plan view having an octagonal cross section.

BEST MODE FOR CARRYING OUT THE INVENTION

According to a first aspect of the invention to obtain the foregoingobjects, it is provided a welding wire container which includes an outershell for storing welding wire therein and a base plate for closing alower end of the outer shell, the welding wire container comprising: anupper protrusion enlarged in diameter beyond the outer shell forstructurally reinforcing an upper outer portion of the outer shell; alid sized for covering the outer shell; and an upper fixture for fixingand wrapping the lid at an upper end of the outer shell to obtainstructural reinforcement, wherein the upper fixture includes a flangeextending inward along an outer edge of the lid, a supporting facefolded from the flange and extending along an outer periphery of theupper protrusion and a folded groove arranged under the supporting faceand having a diameter smaller than that of the upper protrusion.

According to a second aspect of the invention to obtain the foregoingobjects, it is provided a welding wire container which includes an outershell for storing welding wire therein, a base plate for closing a lowerend of the outer shell and a lid for covering the outer shell, thewelding wire container comprising: a fitting projection arranged in alower inner portion of the outer shell and having a diameter smallerthan that of the base plate for catching and supporting the base platethereon; and a lower fixture for wrapping the lower end of the outershell to structurally reinforcing the same, wherein the lower fixtureincludes a flange extending along a lower edge of the outer shell and asupporting face folded from the flange and extending along a lower outerperiphery of the outer shell.

According to a third aspect of the invention to obtain the foregoingobjects, it is provided a welding wire container which includes an outershell for storing welding wire therein and a base plate for closing alower end of the outer shell, the welding wire container comprising: anupper protrusion enlarged in diameter beyond the outer shell forstructurally reinforcing an upper outer portion of the outer shell; alid sized for covering the outer shell; an upper fixture for fixing andwrapping the lid at an upper end of the outer shell to obtain structuralreinforcement, wherein the upper fixture includes a flange extendinginward along an outer edge of the lid, a supporting face folded from theflange and extending along an outer periphery of the upper protrusionand a folded groove arranged under the supporting face and having adiameter smaller than that of the upper protrusion; a fitting projectionarranged in a lower inner portion of the outer shell and having adiameter smaller than that of the base plate for catching and supportingthe base plate thereon; and a lower fixture for wrapping the lower endof the outer shell to structurally reinforcing the same, wherein thelower fixture includes a flange extending along a lower edge of theouter shell and a supporting face folded from the flange and extendingalong a lower outer periphery of the outer shell.

According to a fourth aspect of the invention to obtain the foregoingobjects, it is provided a welding wire container which includes an outershell for storing welding wire therein and a base plate for closing alower end of the outer shell, the welding wire container comprising:upper and lower fixtures fitted around respectively upper and lowerportions of the outer shell, wherein the upper fixture has a flangeextended for a length substantially identical with the thickness of theouter shell, and the lower fixture has a flange extended for catchingthe base plate thereon; and clamping means at both ends of the upper andlower fixtures, wherein the clamping means are detachably tightened sothat the outer shell maintains its original shape and couples with thebase plate, and the clamping means are tightened and loosed so that theouter shell, the base plate and the upper and lower fixtures are readilycoupled and disassembled.

Furthermore the invention provides a welding wire package comprising:the welding wire container for storing welding wire stacked therein inaccordance with one of the preceding aspects.

The following detailed description will discuss the welding wirecontainers of the present invention easy in coupling and/or disassemblyin reference to the accompanying drawings.

As shown in FIG. 2, the welding wire container 200 according to thefirst embodiment of the invention includes an outer shell 110 forstoring welding wire W therein, a base plate 120 and a lid 210 coveringan upper portion of the outer shell 110.

In an upper end thereof, the outer shell 110 has an upper protrusion 220enlarged in diameter beyond the diameter of the outer shell 110 in orderto structurally reinforce the upper exterior of the outer shell 110.

The upper protrusion 220 is made of paper. The upper protrusion 220 hasa folded portion 224 enlarged in diameter beyond the outer shell 110 asshown in FIGS. 5 a and 5 b. Alternatively, as shown in FIG. 5 c, theupper protrusion 220 has a ring member 226 enlarged in diameter, whichis fitted around the outer shell 110 and fixedly bonded thereto.

As shown in FIGS. 3 a and 3 b, the upper protrusion 220 includes anenlarged portion 228 enlarged in diameter at an upper edge of the outershell 110 and a ring member 229 seated on and bonded to an inner edge228 a of the enlarged portion 228, in which the ring member 229 has aninside diameter substantially identical with that of the outer shell110.

Further, the first embodiment of the invention has the lid 210 made ofpaper and sized to cover the outer shell 110 as shown in FIG. 2. The lid210 has a flange 212 contacting with the upper edge of the outer shell110 and a stepped portion 214 projecting downward into the outer shell110 to support an upper inner periphery of the outer shell 110.

In the lid 210 having this configuration, the flange 212 is closelycontacted with the upper edge of the outer shell 110 by an upper fixture230 which will be described hereinafter, and the stepped portion 214having a diameter smaller than that of the flange 212 is fitted into anupper inner periphery of the outer shell 110 to function as areinforcing member resisting external force which is applied to theupper edge of the outer shell 110. At the same time, the lid 210 alsofunctions to seal the inside of the outer shell 110 so that external airmay not be introduced into the inside.

The first embodiment of the invention also has the upper fixture 230 inthe upper end of the outer shell 110 for fixing and wrapping the lid 210to structurally reinforce the lid 210. The fixture 230 is made of paperlike the outer shell 110, the lid 210 and the upper protrusion 220. Alsothe fixture 230 has a flange 232 extending inward along an outer edge ofthe flange 212 of the lid 210, a supporting face 234 folded from theflange 232 and extending along an outer periphery of the upperprotrusion 220 and a folded groove 236 extending downward from thesupporting face 234. The folded groove 236 has a diameter which isreduced smaller than that of the upper protrusion 220.

Further, as shown in cross section in FIG. 14, the flange 232 of theupper fixture 230 includes a central inner periphery 232 a which is sosized to fix a head cap 238 for drawing out the welding wire so that thewelding wire W can be drawn out when the lid 210 is removed, the headcap 238 is mounted, and the upper fixture 230 is mounted again.

As shown in FIG. 4, an inner shell 250 is placed in a central portion ofthe outer shell 110. The inner shell 250 is coaxially fixed at a lowerend to the base plate 120, and has an upper end folded inward to form afolded portion 252 for structurally reinforcing the upper end of theinner shell 250.

Further, as shown in FIGS. 4 and 5, the outer shell 110 includes anouter protrusion 260 enlarged in diameter adjacent to the lower end ofthe upper fixture 230. The outer protrusion 260 has a folded portion 262enlarged in diameter from the outer shell 110 adjacent to the lower endof the fixture 230. The folded portion 262 can be integrally formedtogether with the outer shell 110, and adds structural strength to theouter shell 110 to protect the outer shell 110 against any externalforce. The folded portion 262 may have the form of a continuous ringaround the outer shell 110. Alternatively, the folded portion 262 mayinclude a number of small arciform folded portions which continue alongan outer periphery of the outer shell 110.

Further, a ring member 264 enlarged in diameter can be fitted around theouter shell 110 adjacent to the lower end of the upper fixture 230 andfixedly bond thereto to form the outer shell 260.

In this case, the ring member 264 can be made of paper, and addsstructural strength to the outer shell 110 to protect the outer shell110 against any external force. Further, the ring member 264 can beseparately made, and then readily mounted on the outer shell 110.

According to the first embodiment of the invention as above, the outershell 110, the inner shell 250, the base plate 120 and the upper fixture230 are mostly made of paper so that the container can be very easilydiscarded after exhaustion.

As shown in FIG. 6, the welding wire container 300 according to thesecond embodiment of the invention includes an outer shell 110 forstoring welding wire W therein, a base plate 120 and a lid 150 forcovering an upper portion of the outer shell 110.

The welding wire container 300 forms a fitting projection 305 projectedinward at a lower end of the outer shell 110. The fitting projection 305has a diameter substantially smaller than that of the base plate 120 sothat the base plate 120 is supportedly caught on an upper portion of thefitting projection 305.

The fitting projection 305 has an integral construction with the lowerend folded inward into an L-shaped configuration. The fitting projection305 provided in the outer shell 110 in this fashion can mount the baseplate 120 on the outer shell without any additional member.

Also, the welding wire container 300 according to the second embodimentof the invention includes a lower fixture 307 for wrapping a lower edgeof the outer shell 110 to structurally reinforce the same. The lowerfixture 307 has an annular flange 308 extending along the lower edge ofthe outer shell 110 and a supporting face 309 folded from the flange 308and extending along a lower outer periphery of the outer shell 110 tofurther securely reinforcing the lower end of the outer shell 110against any external force.

Unlike the above construction, the fitting projection 305 has a lowerend which is folded inward overlapping itself in part to define anintegrally folded portion 310 as shown in FIG. 7. The fitting projection305 provided in the outer shell 110 in this manner can mount the baseplate 120 on the outer shell 110 without any additional member.

Further, as shown in FIG. 9 a, the fitting projection 305 has aconstruction which is obtained by fixedly bonding a ring member 314having an outside diameter substantially the same as the inside diameterof the outer shell 110 to an inner lower end of the of the outer shell110. The ring member 314 may be made of paper, add structural strengthto the outer shell 110 to protect the outer shell 110 against anyexternal force. Further, the ring member 264 may be separately made andthen readily mounted on the outer shell 110.

As shown in FIG. 9 b, the fitting protrusion 305 may have a backingmember 320 extending along a lower inner periphery of the outer shell110. The backing member 320 has an outer vertical portion extendingalong the lower inner periphery of the outer shell 110 and a number ofholes 322 are perforated from the inner face of the vertical portiontoward the outer face thereof to form burrs 327 projecting from thevertical portion. The backing member 320 also has a flange 329 foldedfrom the vertical portion to extend along an outer edge of the base 120.

Therefore, the vertical portion of the backing member 320 is tightlycontacted against the lower inner periphery of the outer shell 110 sothat the base plate 120 is supported by the flange 329.

In this case, the backing member 320 can be made of steel excellent instrength.

The number of burrs 327 in the outer face of the backing member 320 arecompressed against the lower inner face of the outer shell 110 tofurther enhance the coupling force of the backing member 320 with theouter shell 110 thereby more stably supporting the base plate 120.

As shown in FIG. 9 c, the fitting projection 305 can be defined by afolded portion 330 which is reduced in diameter adjacent to the lowerend of the outer shell 110. The folded portion 330 can be integrallyformed together with the outer shell 110, and add structural strength tothe outer shell 110 to protect the outer shell 110 against any externalforce.

In this case, the lower fixture 307 has a folded portion 307 aconfigured corresponding to the folded portion 330 for fixation to thelower end of the outer shell 110.

As shown in FIGS. 7 and 8, the welding wire container 300 according tothe second embodiment of the invention includes an inner shell 250within the outer shell 110. The base plate 120 is configured to fix thelower end of the inner shell 250. The base plate 120 includes an uppercircular plate 122 a having a diameter substantially identical with theinside diameter of the inner shell 250, a doughnut-shaped intermediateplate 122 b having an inside diameter substantially identical with theoutside diameter of the inner shell 250 and an outside diametersubstantially identical with the inside diameter of the outer shell 110and a lower circular plate 122 c having a diameter substantiallyidentical with the inside diameter of the outer shell 110.

In the base plate 120 configured as above, the lower circular plate 122c is supported with its outer edge on the lower fitting projection 305of the outer shell 110, the doughnut-shaped intermediate plate 122 b isplaced on the lower circular plate 122 c, the inner shell 250 isinserted into the inside diameter of the intermediate plate 122 b, andthen the upper circular plate 122 a is inserted into the inside diameterof the inside tube 250.

In this manner, the lower end of the inner shell 250 is fixedly fittedbetween the upper circular plate 122 a and the doughnut-shapedintermediate plate 122 b, in which the welding wire W is received andstacked in a space between the outer shell 110 and the inner shell 250.

The welding wire W received like this strongly presses the intermediateplate 122 b and the lower circulate plate 122 c toward the fittingprojection 305 under the self-weight to obtain tight contacttherebetween.

The upper circular plate 122 a, the doughnut-shaped intermediate plate122 b and the lower circular plate 122 c can be so mounted that a hook124 can project through central portions thereof into the inner shell250. The hook 124, as shown in FIG. 15 b, can be connected with aone-touch type rubber band 125 for fixing the welding wire W stackedbetween the outer shell 110 and the inner shell 250.

Further, as shown in FIGS. 7 and 8, the container includes a disk-shapedbacking member 127 having an outside diameter identical with the insidediameter of the fitting projection 305 and functioning as an innerreinforcing member of the above mentioned fitting projection 305.

The backing member 127 supports the inner periphery of the fittingprojection 305 with an outer edge thereof thereby further protecting thelower end of the outer shell 110 against any external force. Further,the backing member 127 has a recess 127 a in an upper face thereof,where the hook 124 can be seated by its lower end.

Now FIG. 10 c shows another backing member 350 that is an innerreinforcing member of the above-described fitting projection 305.

In the fitting projection 305, the lower end of the outer shell 110 isfolded inward overlapping itself in part to define the integrally foldedportion 310. The backing member 350 is mounted on the inner face of thefitting projection 305. The backing member 350 has a body 352 extendingalong the inner periphery of the fitting projection 305. The body 352has a number of holes 354 perforated toward the outer face from theinner face to form burrs 357 projected from outer face of the body 352.The backing member 350 includes a flange 359 which is folded from thebody 352 and extends along the outer edge of the base plate 120. Thebody 352 and the flange 359 have cut sections 360 formed in a radialdirection of the outer shell 110 and diameter-adjusting means 362 atboth ends of the cut sections 360.

The outside diameter-adjusting means 362 includes nut members 364mounted respectively on inner peripheries of the cut sections 360 of thebody 352 and a bolt member 368 having male threads 366 at both ends forbeing screwed into the nut members 364 so as to adjust the diameter ofthe backing member 350 via rotation of the bolt member 368.

Therefore, the outside diameter-adjusting means 362 enlarges the outsidediameter of the body 352 so that the outer periphery of the body 352closely contacts with the lower inner periphery of the outer shell 110.Then the backing member 350 more securely supports the lower end of theouter shell 110 against any external force.

The backing member 350 is closely contacted with the lower innerperiphery of the outer shell 110 by the outside diameter-adjusting means362 to more securely support the lower end of the outer shell 110against any external force while the number of burrs 357 in the body 352are pressed against the inner periphery of the fitting projection 305 tomore stably support the base plate 120.

Further, according to the second embodiment of the invention, the outershell 110, the inner shell 250, the base plate 120 and the lower fixture307 are mostly made of paper while only the backing plate 350 is made ofsteel in order to minimize application of, steel so that the containercan be readily discarded after exhaustion.

FIG. 11 shows the welding wire container 400 according to the thirdembodiment of the invention. The welding wire container 400 includes anouter shell 110 for storing welding wire Wand a base plate 120 forclosing a lower end of the outer shell 110. The outer shell 110 has anupper protrusion 220 in an upper exterior, which is enlarged in diameterbeyond the outer shell 110 to structurally reinforce the outer shell110. The container 400 includes a lid 210 at an upper portion of theouter shell 110, which is sized for covering the same, and an upperfixture 230 over the upper portion of the outer shell 110, which fixesand wraps the lid 210 for structurally reinforcing the same.

As in the first embodiment, the upper fixture 230 has a flange 232extending along an outer edge of the lid 210, a supporting face 234folded from the flange 232 and extending along an outer periphery of theupper protrusion 220 and a folded groove 236 in a lower portion of thesupporting face 234. The folded groove 236 is having a diameter smallerthan that of the upper protrusion 22.

Further, the outer shell 110 has a fitting projection 305 in a lowerinner portion, which has a diameter smaller than that of the base plate120 so that the base plate 120 is supportedly caught on an upper portionof the fitting projection 305. The container 400 also includes a lowerfixture 307 for wrapping and structurally reinforcing the lower end ofthe outer shell 110.

As in the second embodiment, the lower fixture 307 includes a flange 308extending along a lower edge of the outer shell 110 and a supportingface 309 folded from the flange 308 and extending along a lower outeredge of the outer shell 110.

The container also includes an inner shell 250 within the outer shell110, which can be fixed by a lower end to the base plate 120. The innershell 250 has a folded portion 252 in an upper end for structurallyreinforcing the inner shell 250.

The outer shell 110 has an outer protrusion 260 adjacent to a lower endof the upper fixture 230, which is enlarged in diameter to structurallyreinforce the outer shell 110.

The third embodiment of the invention can have a variation of the lowerfixture 307. As shown in FIG. 13, the lower fixture 307 has an annularflange 308 extending along a lower edge of the outer shell 110 and asupporting face 309 folded from the flange 308 and extending along alower outer periphery of the outer shell 110.

The flange 308 and the supporting face 309 have cut sections formed in aradial direction of the outer shell 110 and clamping means 412 at bothends of the cut sections. The clamping means 412 tightens the lower endof the outer shell 110 so as to closely contact the base plate 120 withthe fitting projection 305 of the outer shell 110.

The supporting face 309 of the lower fixture 307 has a number of holes414 perforated from an outer face toward an inner face and burrs 415projected from the holes 414 for being fixed to the outer periphery ofthe outer shell 110. The clamping means 412 is in the form of a clamp.

The clamp 412 has a handle 420 which is rotatably mounted on one end ofthe supporting face 309, a hook 424 in a middle portion of the handle420 and a protrusion 426 at the other end of the supporting face 309 onwhich the hook 424 can be hung. The handle 420 is flapped toward theprotrusion 426, the hook 424 is hung around the protrusion 426, and thenthe handle 420 is flapped away from the protrusion 426 allowing the hook424 to pull the protrusion 426. This results a clamping structure inwhich the ends of the supporting face 309 are strongly connected to eachother via the hook 424 and the protrusion 426.

In the above construction, the lower fixture 307 more securely supportsthe lower end of the outer shell 110 with the clamping means 412 whilethe number of burrs 415 are pressed against the lower end of the outershell 110 to more stably support the same.

The welding wire container 400 having such a lower fixture 307 accordingto the third embodiment of the invention is more structurally reinforcedin the lower end of the outer shell 110 to stably store the welding wireW. The outer shell 110, the inner shell 250, the base plate 120 and theupper fixture 230 are mostly made of paper, and the lower fixture 307 ismade of paper. This means that substantially all components can be madeof paper. Alternatively, only the lower fixture 307 having the clamp 412can be made of steel to minimize use of steel so that the container canbe very simply discarded after exhaustion thereof.

FIG. 14 shows the usage of the welding wire container 400 according tothe third embodiment of the invention. When it is needed to draw out thewelding wire W stacked between the outer shell 110 and the inner shell250, the upper fixture 230 made of paper is pulled upward, the lid 210is removed, the head cap 238 in the form of a conical transparentmaterial is mounted thereon, and then the upper fixture 230 is mountedagain. This completes connection between the head cap 238 and the outershell 110 so that the welding wire W can be drawn out.

From this position, the welding wire W is drawn out of the outer shell110 via a tube 238 a in the apex of the head cap 238, and thencontinuously fed toward a welding wire feeder (not shown).

FIGS. 15 a and 15 b show a structure of a transport jig 450 in use fortransporting the welding wire container of the invention. The transportjig 450 includes a ring 452 for being caught by a hook 455 of a crane, asupport frame 457 under the ring 452 and a mounting ring 462 under thesupport frame 457 connected thereto via a plurality of chains 460.

The mounting ring 462 has a U-shaped cross section, and is halved intoarciform bodies. The mounting ring 462 has a number of burrs 464 in aninner periphery. The halved arciform bodies are connected to each other,hingeably at one ends and via a clamp 470 at the other ends, to defineone circular ring-shaped structure.

FIG. 15 b shows the usage of the transport jig 450. The clamp 470 of themounting ring 462 is opened to enlarge the diameter of the mounting ring462, the diameter-enlarged mounting ring 462 is fitted around the outershell 110 under the outer protrusion 260, and then the clamp 470 is shutto couple the mounting ring 462 with the outer shell 110. When thetransport jig 450 is raised via the hook 455 and the like from thisposition, the mounting ring 462 raises the container via the outerprotrusion 260 allowing transport thereof.

Although the transport jig 450 can fix the container by tightening theclamp 470 only, the number of burrs 464 in the inner periphery of themounting ring 464 are pressed against the outer face of the containerthereby further enhancing the coupling force with the outer shell 110.

FIGS. 16 a and 16 b show a structure of an alternative transport jig480. The mounting ring 482 has a U-shaped cross section, and is halvedinto arciform bodies like the above construction. The mounting ring 482has a number of burrs 484 in an inner periphery. The halved arciformbodies are connected to each other, hingeably at one ends and via aclamp 490 at the other ends, to define one circular ring-shapedstructure.

The transport jig 480 includes a plurality of hooks 494 at upperportions of the mounting ring 482, in which the hooks 494 are fixedlyfitted around both ends of a hoist bar 496 which is caught by a hook 455and so on of a crane.

FIG. 16 b shows the usage of the transport jig 480. The clamp 490 of themounting ring 482 is opened to enlarge the diameter of the mounting ring482, the mounting ring 482 is fitted around the outer shell 110 underthe outer protrusion 260, and the clamp 490 is shut to couple themounting ring 482 with the outer shell 110. When the transport jig 480is raised via the hook 455, the hoist bar 496 and the like from thisposition, the mounting ring 482 raises the container via the outerprotrusion 260 allowing transport thereof.

Therefore, workers can readily move containers which store heavy weldingwire stacked therein by using the transport jig 450 or 480 as above.

FIG. 17 a shows the welding wire container 500 according to the fourthembodiment of the invention. Upper and lower fixtures 510 a and 510 bare fitted respectively around upper and lower portions of an outershell 110. The upper fixture 510 a has an inner flange 512 extendingsubstantially identical with the thickness t of the outer shell 110 forwrapping the same. As shown in FIG. 17 c, an annular projection 513 a isformed in an outer portion of the flange 512 a for engaging into a lid150 and a ring member 160, and a folded end 513 b is formed in an innerportion of the flange 512 a for wrapping the upper end of the outershell 110.

Further, the upper fixture 510 a has clamping means for tightening bothends thereof, which includes projected pieces 518 at the both ends ofthe upper fixture, 510 a and a clip 514 for securely coupling theprojected pieces 518. Therefore, the upper fixture 510 is fixed in theform of a ring via the clip 514 and the projected pieces 518.

The lower fixture 510 b is adapted to wrap a lower portion of the outershell 110 therein, and includes an inner flange 512 b extending toward abase plate 120. The inner flange 512 b supports the base plate 120 tofunction as a fitting projection thereby preventing the base plate 120from slipping down.

The lower fixture 510 b has projected pieces 518 at both ends. A clip514 is fitted around the projected pieces 518 to strongly tighten bothof the projected pieces 518. This allows the outer shell 110 to couplewith the base plate 120 while maintaining the original shape so that thelower fixture 510 is not readily detached or slipped down. Further theouter shell 110 is not distorted owing to resistance of the base plate120 under pressure from the inside of the outer shell 110. Also theouter shell 110, the base plate 120 and the lower fixture 510 b arereadily coupled and disassembled as the projected pieces 518 and theclip 514 are tightened and loosened.

Therefore the welding wire container 500 according to the fourthembodiment of the invention is unnecessary of any complicated processesin manufacture thereof. In discarding any exhausted container,dismantled wastes are readily stored and transported. Further, inincinerating the exhausted container, those portions made of paper canbe separately fired while dismantled steel portions can be reused.

The projected pieces 518 draw together the both ends of the upper andlower fixtures 510 a and 510 b so that they are bound together.Alternatively, as shown in FIG. 17 b, bolts 520 a and nuts 520 b canreplace the projected pieces 518 to tighten the both ends of the upperand lower fixtures 510 a and 510 b. The fixtures 510 a and 510 b can bereadily coupled and disassembled with the bolts 520 a and the nuts 520 blike this.

FIG. 17 d shows another alternative structure of outer shell 110, upperand lower fixtures 510 a and 510 b and clamping means unlike those shownin FIGS. 17 a and 17 b. The upper and lower fixtures 510 a and 510 beach have a protrusion 522 in an inner periphery and a groove 524 in anouter periphery. The outer shell 110 has protrusions 112 in innerperipheries of upper and lower portions and grooves in outer peripheriesthereof. The protrusion 522 of the upper fixture 510 a corresponds tothe groove 114 of the outer shell 110. The upper fixture 510 a has aninner flange 512 a extending substantially identical with the thicknesst of the outer shell 110 for wrapping the same. As shown in FIG. 17 e,the upper fixture 510 a has an annular projection 513 a in an outerperiphery of the flange 512 a for engaging into the lid 150 and the ringmember 160 and a folded end 513 b in an inner periphery of the flange512 a for wrapping the upper end of the outer shell 110.

The protrusion 522 of the lower fixture 510 b is caught on the lowergroove 114 of the outer shell 110 so as to prevent the lower fixture 510b and the base plate 120 from slipping down owing to the weight of thewelding wire W.

The lower protrusion 112 of the outer shell 110 is so positioned tocatch the base plate 120 thereon as shown in dotted lines in FIG. 17 d.The clamping means for clamping ends of the upper and lower fixtures 510a and 510 b are in the form of clamps.

In the clamps 530, handles 532 are pivotably mounted on each of upperand lower portions of one end of the upper and lower fixtures 510 a and510 b, hooks 534 are installed respectively in middle portions of thehandles 532, and protrusions 536 are formed in upper and lower portionsof the other ends of the upper and lower fixtures 510 a and 510 b. Eachof the handle 532 is flapped toward a pertinent protrusion 536, apertinent hook 534 is hung around the protrusion 536, and the handle 532is pivoted away from the protrusion 536 and then pressed so that thehook 534 pulls the protrusion 536. This obtains strong connectionbetween the ends of the upper and lower fixtures 510 a and 510 b via thehooks 534 and the protrusion 536.

In order to release the connection, the each handle 532 is pivoted in anopposite direction toward a pertinent protrusion 536 so that a pertinenthook 534 is released from the protrusion 536. The upper and lowerfixtures 510 a and 510 b are disconnected in this manner.

Alternatively, the clamping means may utilize a clip 514, a bolt 520 a,a nut 520 b and so on, or any structures which facilitate coupling anddisassembly of the upper and lower fixtures. However, welding is notpreferred since it bonds the fixtures in an undetachable manner.

FIG. 18 a shows an alternative structure of upper and lower fixtures 510a and 510 b equipped in the welding wire container 500 according to theinvention. The upper and lower fixtures 510 a and 510 b each have anumber of holes 535 perforated from an outer face toward an inner faceand burrs 537 projected around the holes 535 in the inner face. Theprojected burrs 537 strongly press the outer face of the outer shell 110so as to effectively prevent the lower fixture 510 b and the base plate120 from slipping down out of the outer shell 110 under the weight ofthe welding wire W.

As shown in FIG. 18 b, the upper fixture 510 a includes an inner flange512 a extending substantially identical with the thickness t of theouter shell 110 for wrapping the outer shell 110, an annular projection513 a extending from an outer periphery of the flange 512 a for engaginginto the lid 150 and the ring member 160 and a folded end 513 bextending from an inner periphery of the flange 512 a for wrapping theupper end of the outer shell 110.

FIGS. 19 a and 19 b show another alternative structure of upper andlower fixtures 510 a and 510 b equipped in the welding wire container500 according to the fourth embodiment of the invention. In the upperand lower fixtures 510 a and 510 b, a number of slots 535 a areperforated perpendicular to the direction of the upper and lowerfixtures 510 a and 510 b. The slots 535 a are arranged in rows in theouter faces of the upper and lower fixtures 510 a and 510 b. The upperand lower fixtures 510 a and 510 b are longer than the outercircumference of the outer shell 110 so that ends of the upper and lowerfixtures 510 a and 510 b are partially overlapped.

The upper fixture 510 a has an annular projection 513 a extending froman outer periphery of the flange 512 a for engaging into the lid 150 andthe ring member 160. A folded end 513 b is alternatively extended froman inner periphery of the flange 512 a for wrapping the upper end of theouter shell 110. The upper and lower fixtures 510 a and 510 b eachinclude clamping means having a clamp 545 at one end thereof and aninsert 547 at the other end. The insert 547 has a number of incisions541. A plurality of bolts 550 are rotatably installed in the clamp 545,and have screw threads 550 a corresponding to the incisions 541. Theflange 512 a and a lower edge of the upper fixture 510 a are partiallyremoved to form the insert 547 into a configuration adequate forinsertion into the clamp 545.

The insert 547 is slightly offset outward from the circumferentialdirection of the upper fixture 510 a for a given interval P for engaginginto the clamp 545.

When the insert 547 is inserted into the clamp, both ends of the upperfixture 510 a correctly match each other.

In the meantime, the clamp 545 and the insert 547 are so fixed that thebolts 550 can be rotated by its head and tail in the clamp 545. Aportion of the flange 512 a is removed from the insert 547. The insert547 is inserted into a bore 545 a of the clamp 547 and screwed outbetween the bolts 550 in the clamp 545 and each of the upper and lowerfixtures 510 a and 510 b so that rotation of the bolts 550 drawstogether the both ends of the fixture 510 a or 510 b so that they arebound together.

When bound together as above, a portion of the flange 512 a of the upperfixture 510 a adjacent to the insert 547 correspondingly contacts withanother portion of the flange 512 a of the upper fixture 510 a adjacentto the clamp 545 so that the outer shell 110 and the upper fixture 510 acan be readily coupled and disassembled. In the same manner, a portionof the flange 512 b of the lower fixture 510 b adjacent to the insert547 correspondingly contacts with another portion of the flange 512 b ofthe lower fixture 510 b adjacent to the clamp 545 so that the outershell 110, the base plate 120 and the lower fixture 510 b can be readilycoupled and disassembled.

In the meantime, the upper and lower fixtures 510 a and 510 b each haveburrs 537 around the entire slots 535 except for the insert 547 so as toprevent the lower fixture 510 b and the base plate 120 slipping downfrom the outer shell 110 under the weight of the welding wire. Rotationof the bolts 550 can enhance the coupling force between the upper andlower fixtures 510 a and 510 b and the outer shell 110 as well asfacilitate disassembly thereof.

FIGS. 20 a to 20 d show further another alternative structure of upperand lower fixtures 510 a and 510 b.

The upper and lower fixtures 510 a and 510 b each include a protrusion522 in an inner periphery and a groove 524 in an outer periphery. Asshown in FIG. 17 e, the outer shell 110 engaging into the upper andlower fixtures 510 a and 510 b includes protrusions 112 in innerperipheries and grooves 114 in outer peripheries in upper and lowerportions. The protrusions 112 in the upper and lower fixtures 510 a and510 b correspond respectively to the grooves 114 of the outer shell 110.In particular, the protrusion 522 of the lower fixture 510 b is caughton the groove 114 of the outer shell 110 so as to prevent the lowerfixture 510 b and the base plate 120 from slipping down out of the outershell 110 under the weight of the welding wire.

The welding wire can be more effectively supported if the base plate 120is caught on the lower protrusion 112 of the outer shell 110.

Further, the upper and lower fixtures 510 a and 510 b each include aclamp 545 at one end and an insert 547 at the other end. The insert 547has a number of incisions 541. A plurality of bolts 550 are rotatablyinstalled in the clamp 545, and have screw threads 550 a correspondingto the incisions 541. The insert 547 has a configuration adequate forinsertion through a bore 545 a in the clamp 545.

The insert 547 is slightly offset outward from the circumferentialdirection of the upper fixture 510 a for a given interval P for engaginginto the clamp 545. When the insert 547 is inserted into the clamp, bothends of the upper fixture 510 a correctly match each other.

As described above in reference to FIG. 19, the clamp 545 and the insert547 draw together the both ends of the upper fixture 510 a throughrotation of the bolts 550 so that the both ends are bound together. Theboth ends of the lower fixture 510 b are drawn together and then boundtogether in the same manner. It is preferred that burrs 537 are formedaround slots 535 a in the upper and lower fixtures 510 a and 510 bexcept for the insert 547. The upper and lower fixtures 510 a and 510 bcan be selectively tightened by using the clip 514 described inreference to FIG. 17 a or the bolts and nuts 520 a and 520 b inreference to FIG. 17 b, or preferably fastened by using the clamp 530described in reference to FIG. 17 d.

Preferably, rotation of the bolts 550 in the clamp 545 causes thethreads 550 a of the bolts 550 to draw the incisions 541 of the insert547 tightening the upper and lower fixtures 510 a and 510 b. Thisensures that upper and lower fixtures 510 a and 510 b can be coupledmore strongly and securely while being easily disassembled.

As shown in FIG. 21, in the welding wire container 500 according to thefourth embodiment of the invention, the base plate 120 includes acircular plate 570 having a diameter substantially identical with theinside diameter of the outer shell 110 and an underlying circulardampproof plate. The circular plate 570 includes upper, intermediate andlower plates 572 a to 572 c.

The upper plate 572 a has a circular array of holes 574 perforated in acentral portion thereof. The intermediate plate 572 b has a circulararray of slots 576 with the same number as the upper plate 572 a, whichare perforated in a circumferential direction. The slots 576 in theintermediate plate 572 b corresponding to the circular array of theupper plate 572 a are perforated longer than the holes 574 in the upperplate 572 a. The lower plate 572 c is in the form of a circular plate.

The upper plate 572 a, the intermediate plate 572 b, the lower plate 572c and the circular dampproof plate 580 are layered in their sequence sothat the base plate 120 has fitting steps 578 defined by the circulararrays of the upper and intermediate plates 572 a and 572 b. An innershell 140 is so erected to correspond to the circular arrays of theupper and intermediate plates 572 a and 572 b, and has a number ofstepped projections 143 in a lower end of thereof. The steppedprojections 143 are inserted into the holes 547 of the upper plate 572a, and placed in the slots 576 of the intermediate plate 572 b. Rotatingthe inner shell 140 causes the stepped projections 143 to tightly fitinto and fix to the fitting steps 578 defined by the difference of sizebetween the holes 574 and the slots 576. The inner shell 140 is readilycoupled to the base plate 120 in this manner. Rotation of the innershell 140 easily obtains coupling and disassembly between the innershell 140 and the base plate 120.

FIG. 23 shows a ring 595 mounted on the welding wire container 500according to the fourth embodiment of the invention. The ring 595 isfixed to the upper fixture 510 a, which is incised in part to form aring mounting frame 597 by which the ring 595 is connected to the upperfixture 510.

Alternatively, a ring-mounting block (not shown) may be fixed to a sideof the upper fixture 510 a via welding so that the ring 595 may berotatably mounted on the ring-mounting block. Otherwise, thering-mounting block (not shown) may be fixed to a side of the upperfixture 510 via rivets and so on so that the ring 595 may be rotatablymounted on the ring-mounting block.

FIGS. 24 a to 24 d illustrate several alternative cross sections of thewelding wire container of the invention.

That is to say, the outer shell 110, the inner shell 120, the base plate120 and the upper and lower fixtures 230 and 307 mounted thereon havepolygonal cross sections such as quadrangle, pentagon, hexagon andoctagon, and thus can be manufactured into various configurations.

According to the various configurations as above, the welding wirecontainer of the invention can be easily made of paper while minimizingthe use of steel, and accordingly very easily discarded afterexhaustion.

Further, the welding wire can be stacked in one of the welding wirecontainers according to the first to fourth embodiment of the inventionto provide a welding wire package, which can be readily carried with thetransport jig 450 or 480 and son on. Those components such as the headcap 238 can be mounted on the outer shell 110 to facilitate feeding ofthe welding wire thereby improving productivity in the weldingoperation.

INDUSTRIAL APPLICABILITY

According to the present invention as described hereinbefore, the outershell 110, the inner shell 120, the base plate 120 and the upper andlower fixtures 230 and 307 are mostly formed of paper while applicationof steel is minimized so that the container can be readily discardedafter exhaustion.

Furthermore, the present invention constructs the welding wire containerto be readily coupled and disassembled so that the container is readilydiscarded/reused and wastes are reduced in volume and mass. Moreover,the welding wire container is provided in an environment friendlymanner.

1. A welding wire container which includes an outer shell for storingwelding wire w therein and a base plate for closing a lower end of theouter shell, the welding wire container comprising: an upper protrusionenlarged in diameter beyond the outer shell for structurally reinforcingan upper outer portion of the outer shell; a lid sized for covering theouter shell; and an upper fixtures for fixing and wrapping the lid at anupper end of the outer shell to obtain structural reinforcement, whereinthe upper fixtures includes a flanges extending inward along an outeredge of the lid, a supporting face folded from the flanges and extendingalong an outer periphery of the upper protrusion and a folded groovearranged under the supporting face and having a diameter smaller thanthat of the upper protrusions.
 2. The welding wire container inaccordance with claim 1, wherein the upper protrusions includes a foldedportion which is enlarged in diameter in the outer shell.
 3. The weldingwire container in accordance with claim 1, wherein the upper protrusionincludes a ring member which is enlarged in diameter, the ring membersbeing fitted around and fixedly bonded to the outer shell.
 4. Thewelding wire container in accordance with claim 1, wherein the upperprotrusions includes an enlarged portions enlarged in diameter at anupper edge of the outer shell and a ring member seated on an inner edgedof the enlarged portions, the ring members having an inside diametersubstantially identical with that of the outer shell.
 5. The weldingwire container in accordance with claim 1, wherein the outer shell, thebase plate, the lids and the upper fixtures are made of paper.
 6. Thewelding wire container in accordance with claim 1, wherein the lidsincludes a flange contacting with an upper edge of the outer shell and astepped portions extending down inside the outer shell for supporting anupper inner periphery of the outer shell.
 7. The welding wire containerin accordance with claim 1, wherein the flange of the upper fixture hasa central inner periphery which is sized adequate for fixing a head capfor drawing out the welding wire.
 8. A welding wire container whichincludes an outer shell for storing welding wire W therein, a base platefor closing a lower end of the outer shell and a lid for covering theouter shell, the welding wire container comprising: a fitting projectionarranged in a lower inner portion of the outer shell and having adiameter smaller than that of the base plate for catching and supportingthe base plated thereon; and a lower fixture for wrapping the lower endof the outer shell to structurally reinforcing the same, wherein thelower fixture includes a flanges extending along a lower edge of theouter shell and a supporting face folded from the flanged and extendingalong a lower outer periphery of the outer shell.
 9. The welding wirecontainer in accordance with claim 8, wherein the fitting projectionsincludes a lower end portion of the outer shell which is folded inwardinto an L-shape.
 10. The welding wire container in accordance with claim8, wherein the fitting projections includes a folded portion which isoverlapped to have an outside diameter substantially identical with theinside diameter of the lower end of the outer shell.
 11. The weldingwire container in accordance with claim 8, wherein the fittingprojections includes a ring member having an outside diametersubstantially identical with the inside diameter of the lower end of theouter shell, the ring member being fixedly bonded to the lower innerportion of the outer shell.
 12. The welding wire container in accordancewith claim 8, wherein the fitting protrusions includes a steel backingmember extending along a lower inner periphery of the outer shell andtightly fixed thereto, wherein the backing member includes an outervertical portion extending along the lower inner periphery of the outershell, the vertical portion having a number of holes perforated from aninner face toward an outer face and burrs projected thereon, and aflange folded from the outer vertical portion and extending along anouter edge of the base plate.
 13. The welding wire container inaccordance with claim 8, wherein the fitting projections includes afolded portion 33 reduced in diameter adjacent to the lower end of theouter shell
 11. 14. The welding wire container in accordance with claim8, wherein the outer shell 11, the base plate and the lower fixtures aremade of paper.
 15. A welding wire container which includes an outershell for storing welding wire W therein and a base plate for closing alower end of the outer shell, the welding wire container comprising: anupper protrusions enlarged in diameter beyond the outer shell forstructurally reinforcing an upper outer portion of the outer shell; alid sized for covering the outer shell; an upper fixture for fixing andwrapping the lid at an upper end of the outer shell to obtain structuralreinforcement, wherein the upper fixtures includes a flanged extendinginward along an outer edge of the lid, a supporting faces folded fromthe flanged and extending along an outer periphery of the upperprotrusion and a folded grooved arranged under the supporting face andhaving a diameter smaller than that of the upper protrusions; a fittingprojection arranged in a lower inner portion of the outer shell andhaving a diameter smaller than that of the base plate for catching andsupporting the base plate thereon; and a lower fixture for wrapping thelower end of the outer shell to structurally reinforcing the same,wherein the lower fixtures includes a flanged extending along a loweredge of the outer shell and a supporting faced folded from the flange308 and extending along a lower outer periphery of the outer shell. 16.The welding wire container in accordance with claim 1, wherein the outershell includes an outer protrusion enlarged in diameter adjacent to alower end of an upper fixtures.
 17. The welding wire container inaccordance with claim 16, wherein the outer protrusion includes a foldedportions enlarged in diameter beyond the outer shell adjacent to thelower end of the upper fixture.
 18. The welding wire container inaccordance with claim 16, wherein the outer protrusion includes a ringmember which is enlarged in diameter adjacent to the lower end of theupper fixture, the ring member being fitted around and fixedly bonded tothe outer shell.
 19. The welding wire container in accordance with claim1, further comprising an inner shell coaxially arranged in a centralportion of the outer shell, wherein the inner shell 59 is fixed at alower end thereof to the base plate and folded inward at an upper endthereof to form a folded portion for structurally reinforcing the upperend.
 20. The welding wire container in accordance with claim 8, whereinthe base plate includes an underlying circular backing members fixedthereto, the backing member having an outer periphery corresponding toan inner periphery of the fitting projection for structurallyreinforcing the lower inner portion of the outer shell.
 21. The weldingwire container in accordance with claim 8, further comprising: a backingmember made of steel and mounted on an inner portion of the fittingprojections, wherein the baking member includes: a body extending alongan inner periphery of the fitting projection, the body having a numberof holes perforated from an inner face thereof toward an outer facethereof and projected burrs; a flanged folded from the body andextending along an outer edge of the base plate; cut sections formed atthe body and the flanged in a radial direction of the outer shell; and adiameter-adjusting means arranged at both ends of the body and theflange, whereby the backing member is adjusted in diameter.
 22. Thewelding wire container in accordance with claim 21, wherein thediameter-adjusting means includes: nut members mounted on the body in aninner periphery thereof adjacent to the cut sections; and a bolt membershaving male threads at both ends for screwing into the nut members,wherein rotation of the bolt member enlarges the diameter of the body sothat an outer periphery of the backing member closely contacts with thelower inner periphery of the outer shell, whereby the backing membersmore securely supports the lower end of the outer shell against externalforce.
 23. The welding wire container in accordance with claim 8,wherein the lower fixture includes clamping means at end sections cutalong a radial direction of the outer shell, wherein the clamping meanstightens the lower end of the outer shell so that the base plates andthe fitting projection of the outer shell closely contact with eachother.
 24. The welding wire container in accordance with claim 23,wherein the supporting face of the lower fixture has a number of holesperforated from an outer face toward an inner face and burrs projectedaround the holes for fixedly pressing the outer periphery of the outershell.
 25. The welding wire container in accordance with claim 23,wherein the clamping means includes a clamp, wherein the clamps has: ahandle rotatably mounted on one end of the supporting face; a hookarranged in a middle portion of the handled; and a protrusions arrangedat the other end of the supporting faced and adapted to catch the hook,whereby the handled is flapped toward the protrusions, the hooks is hungaround the protrusions, and then the handled is flapped away from theprotrusions allowing the hook to pull the protrusions so that the endsof the supporting faced are strongly connected to each other via thehook and the protrusion.
 26. A welding wire container which includes anouter shell for storing welding wire W therein, a base plate and a lidfor covering the outer shell, the welding wire container comprising:upper and lower fixtures and fitted around respectively upper and lowerportions of the outer shells, wherein the upper fixtures has a flangeextended for a length substantially identical with the thickness t ofthe outer shell, and the lower fixture has a flange extended forcatching the base plate thereon; and clamping means at both ends of theupper and lower fixtures and, wherein the clamping means are detachablytightened so that the outer shell maintains its original shape andcouples with the base plate, and the clamping means are tightened andloosed so that the outer shell, the base plate and the upper and lowerfixtures and are readily coupled and disassembled.
 27. The welding wirecontainer in accordance with claim 26, wherein the upper and lowerfixtures and each include: a number of holes perforated from an outerface toward an inner face; and burrs projected around the holes in theinner face for fixedly pressing the outer face of the outer shell. 28.The welding wire container in accordance with claim 27, wherein theholes of the upper and lower fixtures have the form of a number of slotsperforated perpendicular to the direction of the upper and lowerfixtures, the slots being arranged in rows in the outer faces of theupper and lower fixtures, wherein the upper and lower fixtures eachincludes a clamp at one end thereof and an inserts at the other end, theinsert being formed by removing a portion of the flange, wherein theinserts has incisions corresponding to threads of bolts which arerotatably installed in the clamp, wherein the upper and lower fixtureseach are longer than the circumference of the outer shell, and whereinthe insert is inserted into a bore of the fixtures and screwed outbetween the bolts in the clamp and the each fixture while drawingtogether the both ends of the each fixture 510 a or 510 b so that theboth ends are bound to each other, whereby the outer shell, the baseplate and the upper and lower fixtures are readily coupled anddisassembled.
 29. The welding wire container in accordance with claim26, wherein the upper and lower fixtures each have a protrusion in aninner periphery and a groove in an outer periphery, wherein the outershell has upper and lower protrusions and upper and lower grooves inouter peripheries thereof, wherein the protrusions of the upper andlower fixtures correspond respectively to the grooves of the outershell, and so positioned that the base plated is caught on the lowerprotrusion of the outer shell.
 30. The welding wire container inaccordance with claim 29, wherein the upper and lower fixtures and eachinclude: a number of holes perforated from an outer face toward an innerface; and burrs projected around the holes in the inner face for fixedlypressing the outer face of the outer shell.
 31. The welding wirecontainer in accordance with claim 30, wherein the holes of the upperand lower fixtures have the form of a number of slots perforatedperpendicular to the direction of the upper and lower fixtures, theslots being arranged in rows in the outer faces of the upper and lowerfixtures, wherein the upper and lower fixtures each includes a clamp atone end thereof and an insert at the other end, the insert being formedby removing a portion of the flange, the protrusion in the innerperiphery and a groove in the outer periphery, wherein the insert hasincisions corresponding to threads of bolts which are rotatablyinstalled in the clamp, wherein the upper and lower fixtures each arelonger than the circumference of the outer shell, and wherein the insertis inserted into a bore of the fixture and screwed out between the boltsin the clamp and the each fixture while drawing together the both endsof the each fixture so that the both ends are bound to each other,whereby the outer shell, the base plate and the upper and lower fixturesare readily coupled and disassembled.
 32. The welding wire container inaccordance with claim 26, wherein the base plate includes: a circularplate corresponding to the inside diameter of the outer shell; and acircular dampproof plate corresponding to the outside diameter, whereinthe circular plate has an upper plate, an intermediate plate and a lowerplated, wherein the upper plate has a circular array of holes perforatedin a central portion thereof, wherein the intermediate plate has slotsperforated corresponding to the circular array in the upper plate, theslot having the same number as the holes in the upper plate and beinglonger than the holes in the upper plate, wherein the lower plate hasthe form of a circle, wherein the upper plate, the intermediate plate,the lower plate and the circular dampproof plate are layered in theirsequence, the welding wire container further comprising: an inner shellerected corresponding to the circular arrays, wherein the inner shellhas a number of stepped projections in a lower end for being fixed tofitting steps defined in the upper plate and the intermediate plate,whereby the inner shell is coupled with the base plate.
 33. The weldingwire container in accordance with claim 1, wherein the outer shell has apolygonal cross section.
 34. A welding wire package comprising: thewelding wire container for storing welding wire stacked therein inaccordance with claim 1.